CN111135497A - Face mask for preventing and controlling coronavirus - Google Patents
Face mask for preventing and controlling coronavirus Download PDFInfo
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- CN111135497A CN111135497A CN202010094550.XA CN202010094550A CN111135497A CN 111135497 A CN111135497 A CN 111135497A CN 202010094550 A CN202010094550 A CN 202010094550A CN 111135497 A CN111135497 A CN 111135497A
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- 241000711573 Coronaviridae Species 0.000 title claims abstract description 52
- 230000002265 prevention Effects 0.000 claims abstract description 39
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 31
- 241000282414 Homo sapiens Species 0.000 claims abstract description 25
- 239000002121 nanofiber Substances 0.000 claims abstract description 21
- 238000007789 sealing Methods 0.000 claims abstract description 20
- 238000001914 filtration Methods 0.000 claims abstract description 19
- 241000700605 Viruses Species 0.000 claims abstract description 8
- 239000000835 fiber Substances 0.000 claims abstract description 7
- 230000001815 facial effect Effects 0.000 claims abstract description 4
- 210000000056 organ Anatomy 0.000 claims abstract description 4
- 239000007789 gas Substances 0.000 claims description 96
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 46
- 229920000742 Cotton Polymers 0.000 claims description 20
- 239000000463 material Substances 0.000 claims description 12
- 239000011347 resin Substances 0.000 claims description 9
- 229920005989 resin Polymers 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 7
- 239000002912 waste gas Substances 0.000 claims description 6
- 238000010298 pulverizing process Methods 0.000 claims description 5
- 230000001954 sterilising effect Effects 0.000 claims description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 4
- 239000001301 oxygen Substances 0.000 claims description 4
- 229910052760 oxygen Inorganic materials 0.000 claims description 4
- 230000001413 cellular effect Effects 0.000 claims description 3
- 238000010041 electrostatic spinning Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 239000000155 melt Substances 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 2
- 238000007599 discharging Methods 0.000 claims description 2
- 230000029058 respiratory gaseous exchange Effects 0.000 claims 1
- 206010011409 Cross infection Diseases 0.000 abstract description 5
- 206010029803 Nosocomial infection Diseases 0.000 abstract description 5
- 238000007872 degassing Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 210000003128 head Anatomy 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000002401 inhibitory effect Effects 0.000 description 2
- 230000003434 inspiratory effect Effects 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 206010035664 Pneumonia Diseases 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 230000005560 droplet transmission Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B18/00—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
- A62B18/02—Masks
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B18/00—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
- A62B18/08—Component parts for gas-masks or gas-helmets, e.g. windows, straps, speech transmitters, signal-devices
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B23/00—Filters for breathing-protection purposes
- A62B23/02—Filters for breathing-protection purposes for respirators
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- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Pulmonology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Zoology (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
The invention discloses a fresh air positive gas prevention and control coronavirus mask which consists of a positive pressure type air input device, a nanofiber filtering device, a mask main body and a gas disinfection device, wherein the positive pressure type air input device is connected with the nanometer fiber filtering device; the mask main body consists of a mask frame, a transparent face window, an air inlet channel, an exhaust channel, a sealing rubber strip and a wearing elastic band; the mask frame is in an oval shape similar to the face shape of a human face, the transparent face window is in a convex shape, the convex size can envelop facial organs, the transparent face window is arranged in front of the mask frame, the sealing rubber strip is arranged behind the mask frame, and the transparent face window and the mask frame form a closed cavity with the human face through the sealing rubber strip; the fresh air positive gas prevention and control coronavirus mask can comprehensively protect the mouth, nose and eyes of the face of a human body, ensures the inhalation gas required by the human body by inputting filtered positive pressure air through the air inlet channel, and exhausts the exhaled gas through the exhalation channel and enters the disinfection device to kill harmful viruses and then exhausts the gas into the air, thereby eliminating the cross infection to surrounding people.
Description
Technical Field
The invention relates to a fresh air and positive air coronavirus prevention and control mask, belonging to the field of medical health protection instruments.
Background
Pneumonia caused by the novel coronavirus is widely spread and has serious threat and harm to the life health of human beings. Blocking droplet transmission is an effective way to cut off the transmission of new coronaviruses. Ways to block the spread of spray include wearing a mask, goggles, etc. These approaches are mainly from the standpoint of "defense" based on healthy people. For the people infected with virus, due to the shortage of medical resources, the measures such as 'shelter hospital' and 'household self-isolation' adopted in emergency can reduce the possibility of cross infection to a certain extent, but can not eliminate the cross infection among patients or between families, and increases new difficulty for preventing and treating epidemic situations.
Disclosure of Invention
In order to solve the problems, the invention provides a fresh air positive gas prevention and control coronavirus mask which can comprehensively protect the mouth, nose and eyes of the face of a human body, filtered positive pressure air (fresh air) is input through an air inlet channel to ensure the inhalation gas required by the human body, and the exhaled gas is exhausted through an exhalation channel and enters a disinfection device to kill harmful viruses and then is exhausted into the air (positive gas), so that the cross infection to surrounding people is eliminated.
In order to achieve the above object, the present invention provides the following technical solutions: a fresh air positive gas prevention and control coronavirus mask comprises a positive pressure type air input device, a nanofiber filtering device, a mask main body and a gas disinfection device; the mask main body consists of a mask frame, a transparent face window, an air inlet channel, an exhaust channel, a sealing rubber strip and a wearing elastic band; the mask frame is in an oval shape similar to the face shape of a human face, the transparent face window is in a convex shape, the convex size can envelop facial organs, the transparent face window is arranged in front of the mask frame, the sealing rubber strip is arranged behind the mask frame, and the transparent face window and the mask frame form a closed cavity with the human face through the sealing rubber strip; the wearing elastic band is connected with the mask frame, the wearing elastic band is hooped on the head of a person when the mask is worn, and the wearing elastic band has a length adjusting function so as to ensure the comfort; the air inlet channel sequentially comprises an air inlet, an air inlet pipeline and an air inlet outlet, the air inlet is communicated with the air inlet outlet through the air inlet pipeline, the air inlet channel is positioned at the upper side of the mask frame and can be embedded in the mask frame, the air inlet is positioned at the outer edge of the mask frame, and the air inlet outlet is positioned at the inner edge of the mask frame and is communicated with the inner volume of the transparent face window; the positive pressure type air input device is used for outputting air with certain pressure, flow and temperature, and is connected with an air inlet of the air inlet channel through the nano-fiber filtering device; the exhaust channel can be embedded in the mask frame and is used for discharging waste gas exhaled by the mouth and nose of a human body, the exhaust channel sequentially comprises an exhaust inlet, an exhaust pipeline and an exhaust outlet, the exhaust inlet is communicated with the exhaust outlet through the exhaust pipeline, the exhaust inlet is positioned at the inner edge of the lower half part of the mask frame, and the exhaust outlet is positioned on the outer edge of the mask frame; the exhaust outlet is communicated with the gas disinfection device.
According to the fresh air positive gas prevention and control coronavirus mask, the positive pressure type air input device is further provided with the air heating device, the optimal positive pressure type air input device has the function of air temperature closed-loop control, and gas at a certain temperature has the effect of inhibiting the infectivity of coronavirus. The air heating device sets the heating temperature according to the type of the virus, and the heated air is reduced to the proper temperature required by a person through the cooling pipeline and then is input into the mask main body.
According to the fresh air positive air prevention and control coronavirus mask, the positive pressure type air input device can be replaced by an electric blower, a small fan or other air sources. The electric hair drier is provided with a normal-temperature air blowing mode and can be used as a power source. Other gas sources can be oxygen-enriched gas and have the function of supplying oxygen.
According to the fresh air and positive air prevention and control coronavirus mask, the small fan, such as the axial flow fan, is arranged at the positive air outlet formed by the air outlet, the air exhaust function is realized at the air outlet, so that the air exhaled by a person can be exhausted after being forcibly disinfected, the fresh air entering the mask body from the air inlet is ensured to be inhaled by the person, and the exhaled air is exhausted at any time. When a person holds the breath, fresh air is filled in the sealed cavity of the mask. When the positive exhaust gas outlet is provided with a fan, the power source for the intake gas of the air inlet can be omitted.
The invention relates to a fresh air and positive air coronavirus control mask, wherein a nanofiber filtering device is composed of a fiber pad made of green solvent-free nanofibers obtained by a melt differential electrostatic spinning technology, and the fiber diameter is about 200-800 nm.
The invention relates to a fresh air positive air prevention and control coronavirus mask, wherein a mask main body can be replaced by a transparent resin cover with an opening at the bottom, the mask main body comprises a nanofiber filtering device, an air inlet channel, a transparent resin cover, an exhaust channel and a sealing rubber strip, the air inlet channel and the exhaust channel are positioned on the transparent resin cover, the nanofiber filtering device is positioned at the front end of the air inlet channel, and the sealing rubber strip is positioned at the opening at the bottom and plays a role of sealing.
According to the fresh air positive gas prevention and control coronavirus mask, the exhaust inlets of the exhaust channels can be provided with a plurality of exhaust holes, so that the effect of reducing the resistance to exhalation is achieved, and waste gas exhaled by the mouth and nose of a human body can enter the exhaust holes at the same time, is collected by the exhaust pipeline and then is discharged through the exhaust outlets to enter the gas disinfection device.
The invention relates to a fresh air positive gas prevention and control coronavirus mask.A gas disinfection device consists of a hose communicated with an exhaust outlet, a check valve, a stop valve, a porous frame and disinfection cotton, wherein the disinfection cotton can be alcohol cotton; the check valve is arranged at the exhaust outlet and used for preventing gas from being sucked backwards; the stop valve is arranged on the hose pipeline and used for controlling the on-off of the pipeline; the other end of the hose extends into the alcohol cotton. The exhaled gas is treated with alcohol cotton to kill viruses possibly carried in the gas. Through the design, the retention time of the exhaled gas in the alcohol cotton is more than 30s, for example, an alcohol cotton channel is arranged, the length of the channel ensures that the gas flow needs more than 30s from the inlet to the outlet, and the disinfection requirement is met. The porous frame has a detachable structure, and the alcohol cotton in the porous frame can be replaced periodically.
The invention relates to a fresh air positive air prevention and control coronavirus mask, which is characterized in that two air disinfection devices can be arranged, the two air disinfection devices are communicated with an exhaust outlet through a herringbone three-way hose, and a stop valve is arranged on each branch.
When the novel positive air control coronavirus mask works, the fresh air positive air control coronavirus mask is worn on the head of a human body by wearing an elastic band, a power supply of a positive pressure type air input device is turned on, gas pumped by the positive air control coronavirus mask is filtered by a nanofiber filtering device, and fresh air (fresh air) is input into a sealed cavity through an air inlet channel, so that the fresh air can be inhaled by the human body; the expired gas leads the waste gas into the gas disinfection device through the exhaust hole and the exhaust channel, and the gas is disinfected and then discharged into the air.
To the condition that has two gaseous degassing unit, can all work at ordinary times, when changing the alcohol cotton, the accessible closes the stop valve and makes gaseous degassing unit work in turn and guarantee this face guard reliable operation.
The invention relates to a fresh air and positive air prevention and control coronavirus mask, a gas disinfection device can also consist of a hose, a check valve, a stop valve, an exhaust hole, an alcohol bottle, 75% alcohol and a gas crushing device which are communicated with an exhaust outlet, wherein the check valve is arranged at the exhaust outlet, the stop valve is arranged on a hose pipeline, the 75% alcohol is placed in the alcohol bottle, the other end of the hose is connected with the alcohol bottle, the end part of the hose extends below the 75% alcohol liquid level, the gas crushing device is arranged at the end part of the hose, and the hose extending into the alcohol bottle part can also be replaced by a hard pipe made of various materials; the exhaust hole is arranged at the top end of the alcohol bottle; the gas pulverizing device can be a material or a device which can penetrate gas and pulverize gas, such as cellular material or fluffy material.
During disinfection, the exhaled gas is introduced into the alcohol bottle through the exhaust outlet and the hose, is crushed by the gas crushing device, and is exhausted through the exhaust hole after being sterilized by 75% alcohol.
The fresh air positive gas prevention and control coronavirus mask can comprehensively protect the mouth, nose and eyes of the face of a human body, ensures the inhalation gas required by the human body by inputting filtered positive pressure air (fresh air) through the air inlet channel, and exhausts the exhaled gas through the exhalation channel and enters the disinfection device to kill harmful viruses and then exhausts the gas (positive gas) to the air so as to eliminate the cross infection to surrounding people. In addition, to the condition that has two gaseous degassing unit, can all work at ordinary times, when changing the alcohol cotton, the accessible closes the stop valve and makes gaseous degassing unit work in turn and guarantee this face guard reliable operation.
Drawings
FIG. 1 is a front view of a fresh air positive gas prevention and control coronavirus mask of the present invention.
Fig. 2 is a side view of a fresh air positive gas prevention and control coronavirus mask of the present invention.
FIG. 3 is a front view of the inspiratory flow of a fresh air positive gas prevention and control coronavirus mask of the present invention.
FIG. 4 is a side view of the inspiratory flow of a fresh air positive gas prevention and control coronavirus mask of the present invention.
FIG. 5 is a front view of the expiratory airflow of a fresh positive air prevention and control coronavirus mask of the present invention.
Fig. 6 is a schematic diagram of a new positive air control coronavirus mask according to a second embodiment of the present invention.
Fig. 7 is a schematic diagram of a third embodiment of the fresh air positive gas prevention and control coronavirus mask of the present invention.
FIG. 8 is a schematic view of the fresh air positive gas prevention and control coronavirus mask alcohol bottle disinfection device of the invention.
In the figure: 1-positive pressure type air input device, 2-nano fiber filtering device, 3-mask body, 4-gas disinfection device, 5-mask frame, 6-transparent face window, 7-air inlet channel, 8-air outlet channel, 9-sealing rubber strip, 10-wearing elastic band, 7-1-air inlet, 7-2 air inlet pipeline, 7-3 air inlet outlet and 8-1 air outlet inlet, 8-2 exhaust pipelines, 8-3 exhaust outlets, 11-hoses, 12-gas check valves, 13-porous frames, 14-alcohol cotton, 15-stop valves, 16-transparent resin covers, 17-small fans, 18-exhaust holes, 19-alcohol bottles, 20-75% alcohol and 21-gas crushing devices.
Detailed Description
Detailed description of the preferred embodiment
As shown in fig. 1 and fig. 2, the fresh air positive gas prevention and control coronavirus mask of the present invention comprises a positive pressure type air input device 1, a nanofiber filtering device 2, a mask body 3, and a gas sterilizing device 4; the mask main body 3 consists of a mask frame 5, a transparent face window 6, an air inlet channel 7, an air outlet channel 8, a sealing rubber strip 9 and a wearing elastic band 10; the mask frame 5 is in an oval shape similar to the face shape of a human face, the transparent face window 6 is in a convex shape, the convex size can envelop facial organs, the transparent face window 6 is installed in front of the mask frame 5, the sealing rubber strip 9 is installed behind the mask frame 5, and the transparent face window 6 and the mask frame 5 form a closed cavity with the human face through the sealing rubber strip 9; the wearing elastic band 10 is connected with the mask frame 5, the wearing elastic band 10 is hooped on the head of a person when the person wears the mask, and the wearing elastic band 10 has a length adjusting function so as to ensure comfort; the air inlet channel 7 sequentially comprises an air inlet 7-1, an air inlet pipeline 7-2 and an air inlet outlet 7-3, the air inlet 7-1 is communicated with the air inlet outlet 7-3 through the air inlet pipeline 7-2, the air inlet channel 7 is positioned on the upper side of the mask frame 5 and can be embedded in the mask frame 5, the air inlet 7-1 is arranged on the outer edge of the mask frame 5, and the air inlet outlet 7-3 is arranged on the inner edge of the mask frame 5 and is communicated with the internal volume of the transparent face window 6; the positive pressure type air input device 1 is used for outputting air with certain pressure, flow and temperature, and is connected with an air inlet 7-1 of an air inlet channel 7 through a nano-fiber filtering device 2; the exhaust passage 8 can be embedded in the mask frame 5 and is used for exhausting waste gas exhaled by the mouth and nose of a human body, the exhaust passage 8 sequentially comprises an exhaust inlet 8-1, an exhaust pipeline 8-2 and an exhaust outlet 8-3, the exhaust inlet 8-1 is communicated with the exhaust outlet 8-3 through the exhaust pipeline 8-2, the exhaust inlet 8-1 is positioned at the inner edge of the lower half part of the mask frame 5, and the exhaust outlet 8-3 is positioned on the outer edge of the mask frame 5; the exhaust outlet 8-3 is communicated with the gas sterilizing device 4.
According to the fresh air positive gas prevention and control coronavirus mask, the positive pressure type air input device 1 can also be provided with an air heating device, the optimal positive pressure type air input device has an air temperature closed-loop control function, and gas at a certain temperature has an effect of inhibiting the infectivity of coronavirus.
The invention relates to a fresh air and positive air coronavirus control mask, wherein a nanofiber filtering device 2 is composed of a fiber pad made of green solvent-free nanofibers obtained by a melt differential electrostatic spinning technology, and the fiber diameter is about 200-800 nm.
According to the fresh air positive gas prevention and control coronavirus mask, the exhaust inlets 8-1 of the exhaust channel 8 can be provided with a plurality of air exhaust inlets, so that the effect of reducing the resistance to air exhaust is achieved, waste gas exhaled by the mouth and nose of a human body can enter the plurality of air exhaust inlets 8-1 at the same time, is collected by the exhaust pipeline 8-2 and then is discharged through the air exhaust outlet 8-3 to enter the gas disinfection device 4.
The invention relates to a fresh air and positive air prevention and control coronavirus mask.A gas disinfection device 4 consists of a hose 11 communicated with an exhaust outlet 8-3, a check valve 12, a stop valve 15, a porous frame 13 and alcohol cotton 14; the check valve 12 is arranged at the exhaust outlet 8-3 and is used for preventing gas from being sucked backwards, and the exhaled gas is treated by alcohol cotton to kill viruses possibly carried in the exhaled gas; the stop valve 15 is arranged on the pipeline of the hose 11, and the alcohol cotton 14 is positioned at the outlet of the hose 11. By design, the retention time of the exhaled gas in the alcohol cotton is more than 30 s. The porous frame 13 has a detachable structure in which the alcohol pad 14 can be periodically replaced.
The invention relates to a fresh air and positive air prevention and control coronavirus mask, wherein two air disinfection devices 4 can be arranged and are communicated with an exhaust outlet 8-3 through a herringbone three-way hose, and a stop valve 15 is arranged on each branch.
When the device works, the fresh air positive air prevention and control coronavirus mask is worn on the head of a human body by wearing the elastic band 10, a power supply of the positive pressure type air input device 1 is turned on, the gas pumped by the positive pressure type air input device is filtered by the nanofiber filtering device 2, and fresh air (fresh air) is input into the sealed cavity through the air inlet channel 7, so that the fresh air can be inhaled by the human body, as shown in fig. 3 and 4; the exhaled gas is introduced into the gas sterilizing device 4 through the exhaust outlet 8-3 and the exhaust passage 8, and the gas is sterilized and then discharged into the air through the holes of the porous frame 13, as shown in fig. 5. In the case of two gas disinfection devices 4, both work normally, and when the alcohol cotton 14 is replaced, the gas disinfection devices 4 can work alternately by closing the stop valve 15 to ensure the reliable operation of the mask.
Detailed description of the invention
As shown in FIG. 6, the positive pressure air input device 1 of the fresh air positive air prevention and control coronavirus mask of the present invention can be replaced by an electric blower, a small fan 17 or other air sources, and the rest of the structure is unchanged.
Detailed description of the preferred embodiment
As shown in fig. 7, the main body 3 of the fresh air positive air prevention and control coronavirus mask of the present invention can be replaced by a transparent resin cover 16 with an opening at the bottom, and comprises a nanofiber filtering device 2, an air inlet channel 7, a transparent resin cover 16, an air outlet channel 8 and a sealing rubber strip 9, wherein the air inlet channel 7 and the air outlet channel 8 are located on the transparent resin cover 16, the nanofiber filtering device 2 is located at the front end of the air inlet channel 7, and the sealing rubber strip 9 is located at the opening at the bottom to perform a sealing function. The remaining structures of the positive pressure air input device 1 and the gas sterilizing device 4 are the same as those of the other embodiments.
Detailed description of the invention
As shown in fig. 8, the fresh air and positive air prevention and control coronavirus mask of the present invention may also comprise a gas disinfection device 4, which is composed of a hose 11 communicated with an exhaust outlet 8-3, a stop valve 15, an exhaust hole 18, an alcohol bottle 19, a 75% alcohol 20 and a gas pulverizing device 21, wherein the stop valve 15 is arranged on a pipeline of the hose 11, the 75% alcohol 20 is placed in the alcohol bottle 19, the other end of the hose 11 is connected with the alcohol bottle 19, and the end of the hose extends below the liquid level of the 75% alcohol 20, the gas pulverizing device 19 is arranged at the end of the hose 11, and the hose 11 extending into the alcohol bottle part may also be replaced by a hard tube made of various materials; the exhaust hole 18 is arranged at the top end of the alcohol bottle 19; the gas pulverizing means 21 may be a material or means which can permeate and pulverize gas, such as a cellular material or a bulky material.
During disinfection, the expired gas is introduced into the alcohol bottle 19 through the exhaust outlet 8-3 and the hose 11, is crushed by the gas crushing device 21, is sterilized by 75% alcohol 20 and is exhausted through the exhaust hole 18.
Claims (10)
1. The utility model provides a new trend is just angry prevents and controls coronavirus mask which characterized in that: the device consists of a positive pressure type air input device, a nano-fiber filtering device, a mask main body and a gas disinfection device; the mask main body consists of a mask frame, a transparent face window, an air inlet channel, an exhaust channel, a sealing rubber strip and a wearing elastic band; the mask frame is in an oval shape similar to the face shape of a human face, the transparent face window is in a convex shape, the convex size can envelop facial organs, the transparent face window is arranged in front of the mask frame, the sealing rubber strip is arranged behind the mask frame, and the transparent face window and the mask frame form a closed cavity with the human face through the sealing rubber strip; the wearing elastic band is connected with the mask frame, the wearing elastic band is hooped on the head of a person when the mask is worn, and the wearing elastic band has a length adjusting function so as to ensure the comfort; the air inlet channel sequentially comprises an air inlet, an air inlet pipeline and an air inlet outlet, the air inlet is communicated with the air inlet outlet through the air inlet pipeline, the air inlet channel is positioned at the upper side of the mask frame and can be embedded in the mask frame, the air inlet is positioned at the outer edge of the mask frame, and the air inlet outlet is positioned at the inner edge of the mask frame and is communicated with the inner volume of the transparent face window; the positive pressure type air input device is used for outputting air with certain pressure, flow and temperature, and is connected with an air inlet of the air inlet channel through the nano-fiber filtering device; the exhaust channel can be embedded in the mask frame and is used for discharging waste gas exhaled by the mouth and nose of a human body, the exhaust channel sequentially comprises an exhaust inlet, an exhaust pipeline and an exhaust outlet, the exhaust inlet is communicated with the exhaust outlet through the exhaust pipeline, the exhaust inlet is positioned at the inner edge of the lower half part of the mask frame, and the exhaust outlet is positioned on the outer edge of the mask frame; the exhaust outlet is communicated with the gas disinfection device.
2. The fresh air positive gas prevention and control coronavirus mask as claimed in claim 1, wherein: the positive pressure type air input device is also provided with an air heating device, the air heating device sets heating temperature according to the type of viruses, and heated air is reduced to the proper temperature required by people through the cooling pipeline and then input into the mask main body.
3. The fresh air positive gas prevention and control coronavirus mask as claimed in claim 1, wherein: the positive pressure air input device may use an electric blower or a small fan.
4. The fresh air positive gas prevention and control coronavirus mask as claimed in claim 1, wherein: the positive pressure air input device has oxygen-enriched air as the air source and oxygen inhalation function.
5. The fresh air positive gas prevention and control coronavirus mask as claimed in claim 1, wherein: an axial flow fan is arranged at an outlet of the exhaust port forming positive gas.
6. The fresh air positive gas prevention and control coronavirus mask as claimed in claim 1, wherein: the nanofiber filtering device is composed of a fiber mat made of green solvent-free nanofibers obtained by a melt differential electrostatic spinning technology, and the fiber diameter is about 200-800 nm.
7. The fresh air positive gas prevention and control coronavirus mask as claimed in claim 1, wherein: the mask body is replaced by a transparent resin cover with an opening at the bottom, the air inlet channel and the exhaust channel are positioned on the transparent resin cover, the nanofiber filtering device is positioned at the front end of the air inlet channel, and the sealing rubber strip is positioned at the opening at the bottom.
8. The fresh air positive gas prevention and control coronavirus mask as claimed in claim 1, wherein: the exhaust inlet of the exhaust channel is provided with a plurality of exhaust inlets, which play the role of reducing the breathing resistance, and the exhaust gas exhaled by the mouth and nose of the human body can enter a plurality of exhaust holes at the same time, and is discharged through the exhaust outlet after being gathered by the exhaust pipeline to enter the gas disinfection device.
9. The fresh air positive gas prevention and control coronavirus mask as claimed in claim 1, wherein: the gas disinfection device consists of a hose communicated with the exhaust outlet, a check valve, a stop valve, a porous frame and disinfection cotton, wherein the disinfection cotton is alcohol cotton; the check valve is arranged at the exhaust outlet and used for preventing gas from being sucked backwards; the stop valve is arranged on the hose pipeline and used for controlling the on-off of the pipeline; the other end of the hose extends into the alcohol cotton.
10. The fresh air positive gas prevention and control coronavirus mask as claimed in claim 1, wherein: the gas sterilizing device consists of a hose, a check valve, a stop valve, an exhaust hole, an alcohol bottle, 75% alcohol and a gas crushing device which are communicated with an exhaust outlet, wherein the check valve is arranged at the exhaust outlet, the stop valve is arranged on a hose pipeline, the 75% alcohol is arranged in the alcohol bottle, the other end of the hose is connected with the alcohol bottle, the end part of the hose extends below the 75% alcohol liquid level, the gas crushing device is arranged at the end part of the hose, and the hose extending into the alcohol bottle part can also be replaced by a hard pipe made of various materials; the exhaust hole is arranged at the top end of the alcohol bottle; the gas pulverizing device is a material or a device in which the cellular material or the fluffy material is permeable to gas and pulverizes gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010094550.XA CN111135497A (en) | 2020-02-16 | 2020-02-16 | Face mask for preventing and controlling coronavirus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010094550.XA CN111135497A (en) | 2020-02-16 | 2020-02-16 | Face mask for preventing and controlling coronavirus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111135497A true CN111135497A (en) | 2020-05-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010094550.XA Pending CN111135497A (en) | 2020-02-16 | 2020-02-16 | Face mask for preventing and controlling coronavirus |
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| CN (1) | CN111135497A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111603697A (en) * | 2020-05-21 | 2020-09-01 | 乐恩(北京)医药技术有限公司 | Breathing apparatus and breathing management method |
| CN112007197A (en) * | 2020-09-14 | 2020-12-01 | 宿迁学院 | Unmanned vehicle type spraying and sucking type aerosol detoxification machine |
| CN113209507A (en) * | 2021-04-16 | 2021-08-06 | 杜小曦 | Breathing mask |
| WO2022010831A1 (en) * | 2020-07-06 | 2022-01-13 | Hess Spencer W | System and method for killing microorganisms |
| CN114247065A (en) * | 2021-12-16 | 2022-03-29 | 广东友安应急消防科技股份有限公司 | Intelligent fire-fighting self-rescue respirator |
| US11806558B2 (en) | 2020-06-26 | 2023-11-07 | Clear Blew | Body-worn air-treatment devices and methods of deactivating pathogens |
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